Born on September 17th, 1995, Lee Sang 이상 was born in the Chinese Year of the Pig and his zodiac star sign is Libra. He and fellow member Ungjae share the blood type B. He is 176 cm or 5'9½" tall.

Sang was spotted by Star Empire Entertainment when he was only three years old. After years of training he’s a main vocal for Imfact, specializing in writing lyrics and composing. He also enjoys playing the guitar, exercising/sports, and listening to music.

Imfact is a fully multilingual group because all five members can speak a second language besides their native Korean. Jaeup and Taeho can speak Mandarin. Jian, Sang, and Ungjae can speak Japanese. Sang can also speak English, making him trilingual.